scholarly journals Elimination of Myxobolus cerebralis in Placer Creek, a Native Cutthroat Trout Stream in Colorado

2018 ◽  
Vol 30 (4) ◽  
pp. 264-279 ◽  
Author(s):  
R. Barry Nehring ◽  
John Alves ◽  
Joshua B. Nehring ◽  
Benjamin Felt
Keyword(s):  
Cutthroat Trout ◽  
Myxobolus Cerebralis

scholarly journals Myxobolus cerebralis infection patterns in Yellowstone cutthroat trout after natural exposure

2006 ◽  
Vol 71 ◽  
pp. 191-199 ◽  
Author(s):  
S Murcia ◽  
BL Kerans ◽  
E MacConnell ◽  
TM Koel
Keyword(s):  
Cutthroat Trout ◽  
Myxobolus Cerebralis ◽  
Natural Exposure ◽  
Yellowstone Cutthroat Trout

Whirling Disease: Reviews and Current Topics

2002 ◽  
Keyword(s):  
Clinical Signs ◽  
Cutthroat Trout ◽  
The Other ◽  
Mountain Streams ◽  
Oncorhynchus Clarki ◽  
Whirling Disease ◽  
Myxobolus Cerebralis ◽  
Histological Evidence ◽  
Spawning Sites

<EM>ABSTRACT. </EM>We assessed endemic age-0 cutthroat trout <em>Oncorhynchus clarki </em>for evidence of pathology associated with <em>Myxobolus cerebralis </em>in two streams formed by springs in western Wyoming. We hypothesized that the location of spawning sites in spring streams would affect the extent of exposure of cutthroat trout fry to <em>M. cerebralis </em>triactinomyxons (tams), occurrence of the parasite in their bodies, and clinical signs of whirling disease. The spring streams were warm relative to nearby streams flowing from the mountains or spawning and emergence of fry was early compared with fish in mountain streams. Tams were abundant early in the summer and clinical signs of whirling disease among age-0 fish were seen as early as mid-June in one stream. There were high densities of tams in one stream, and densities declined with upstream progression from May through July, whereas in the other stream, low densities of tams were observed in the downstream portion early in the summer, and they were not detected in July and August. Age-0 cutthroat trout were abundant; clinical signs of whirling disease were evident, and histological evidence of whirling disease was common in the stream where tams were abundant. Low densities of age-0 cutthroat trout and no clinical signs of whirling disease were observed in the stream where tams were not abundant. Among sentinel fish in the stream with abundant tams, we found extensive occurrence of <em>M. cerebralis</em>, with many fish showing clinical signs and histological evidence of pathology associated with <em>M. cerebralis</em>. The proportion of sentinel fish with clinical and histological signs of whirling disease decreased with upstream progression. In the stream with low tam, densities sentinel fish became infected with <em>M. cerebralis</em>, but there were essentially no clinical signs or histological indications of whirling disease.

scholarly journals Correlation of environmental attributes with histopathology of native Yellowstone cutthroat trout naturally infected with Myxobolus cerebralis

2011 ◽  
Vol 93 (3) ◽  
pp. 225-234 ◽  
Author(s):  
S Murcia ◽  
BL Kerans ◽  
E MacConnell ◽  
TM Koel
Keyword(s):  
Cutthroat Trout ◽  
Myxobolus Cerebralis ◽  
Environmental Attributes ◽  
Yellowstone Cutthroat Trout

Lectin blot studies on proteins of Myxobolus cerebralis, the causative agent of whirling disease

2005 ◽  
Vol 65 ◽  
pp. 227-235 ◽  
Author(s):  
M Knaus ◽  
M El-Matbouli
Keyword(s):  
Causative Agent ◽  
Whirling Disease ◽  
Myxobolus Cerebralis ◽  
Lectin Blot

EFFECT OF VARIOUS HORMONES ON THE KIDNEY RESPIRATION RATES IN THE CUTTHROAT TROUT (SALMO CLARKI CLARKI)

1960 ◽  
Vol XXXIII (III) ◽  
pp. 428-436 ◽  
Author(s):  
W. N. Holmes
Keyword(s):  
Single Dose ◽  
Respiration Rate ◽  
Cutthroat Trout ◽  
Adaptive Mechanism ◽  
Respiration Rates ◽  
Salmo Clarki

ABSTRACT Relatively large doses of vasopressin administered intraperitoneally to the trout significantly enhanced the kidney respiration rate. In contrast to vasopressin a single dose of oxytocin depressed the kidney Qo2 value. This depression continued throughout the observed 24 hour period after injection. Cortisol enhanced the kidney Qo2 values significantly and to a greater extent than vasopressin. These results are discussed in relation to possible adaptive mechanism in euryhaline species of teleosts.

scholarly journals Thermal Characteristics of a Beaver Dam Analogues Equipped Spring-Fed Creek in the Canadian Rockies

Water ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 990
Author(s):  
Tariq M. Munir ◽  
Cherie J. Westbrook
Keyword(s):  
Thermal Characteristics ◽  
Cutthroat Trout ◽  
Rocky Mountain ◽  
Optimal Growth ◽  
Stream Temperature ◽  
Mountain Stream ◽  
Suitable Habitat ◽  
Restoration Technique ◽  
Beaver Dam ◽  
In Series

Beaver dam analogues (BDAs) are becoming an increasingly popular stream restoration technique. One ecological function BDAs might help restore is suitable habitat conditions for fish in streams where loss of beaver dams and channel incision has led to their decline. A critical physical characteristic for fish is stream temperature. We examined the thermal regime of a spring-fed Canadian Rocky Mountain stream in relation to different numbers of BDAs installed in series over three study periods (April–October; 2017–2019). While all BDA configurations significantly influenced stream and pond temperatures, single- and double-configuration BDAs incrementally increased stream temperatures. Single and double configuration BDAs warmed the downstream waters of mean maxima of 9.9, 9.3 °C by respective mean maxima of 0.9 and 1.0 °C. Higher pond and stream temperatures occurred when ponding and discharge decreased, and vice versa. In 2019, variation in stream temperature below double-configuration BDAs was lower than the single-configuration BDA. The triple-configuration BDA, in contrast, cooled the stream, although the mean maximum stream temperature was the highest below these structures. Ponding upstream of BDAs increased discharge and resulted in cooling of the stream. Rainfall events sharply and transiently reduced stream temperatures, leading to a three-way interaction between BDA configuration, rainfall and stream discharge as factors co-influencing the stream temperature regime. Our results have implications for optimal growth of regionally important and threatened bull and cutthroat trout fish species.

scholarly journals Mating systems and predictors of relative reproductive success in a Cutthroat Trout subspecies of conservation concern

2021 ◽  
Author(s):  
John S. Hargrove ◽  
Jesse McCane ◽  
Curtis J. Roth ◽  
Brett High ◽  
Matthew R. Campbell
Keyword(s):  
Reproductive Success ◽  
Mating Systems ◽  
Cutthroat Trout ◽  
Conservation Concern
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